The Horseshoe was an extinct volcano
measuring some 30 metres high and 550 metres across. It was situated
approximately half way between Nui Dat and the coast and was an
excellent observation post for sighting VC and NVA approaching from
the east. The Horseshoe was also particularly well situated to
prevent enemy movement from Long Tan into the large village of Dat
Do.

It was manned by a rifle company and a troop of field artillery and
sometimes a troop of tanks.